Signor of one-half to albert f



(No Model.)

M. PENNYBAGKER.

NUT LOCK. No. 398,795. Patented Feb 26, 1889.

rrnn firarns PATENT OFFICE.

MORGAN PENNYBACKER, OF IVASHINGTON, DISTRICT OF COLUMBIA, AS- SIGNOR OFONE-HALF TO ALBERT F. KINGSLEY, OF SAME PLACE.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 398,795, dated February26, 1889.

Application filed November 20, 1888. Serial No. 291,327. (No model.)

T0 to 2072/0171 it may concern-.-

Be it known that I, Mono-AN PENNYBACKER,

when thus secured the nut cannot become unscrewed by any amount ofshaking to which itmay be subjected.

No claim is made herein to thebolt having the grooves or key-seats, incombination with the wires to fit in said grooves and then bent- 011 theface of the nut, as I am aware that such as will enable others skilledin the art to which 3 it pertains to make and use the same.

My invention relates to an improvement in nut-locks; and it consists inthe peculiar construction and combination of devices that will be morefully set forth hereinafter, and particularly pointed out in the claim.

In the accompanying drawings, Figure 1 is construction is not broadlynovel. It has been heretofore proposed to provide such a bolt with atransverse opening connecting the inner ends of the grooves, and toprovide a substantially U-shaped wire to fit in said opening andgrooves. Such construction is objectionable for the reason that thetransverse opening increases the expense of the an axial sectional viewshowing the nut locked jections by providing the washer with the on thebolt. Fig. 2 is a perspective view showing the nut in position upon thebolt before being locked thereto.

A represents the bolt, having its threaded portion provided ondiametricallyopposite sides with grooves B.

C represents the nut, which is of the usual construction.

D iepresents a washer having a central opening of sufficient diameter toreceive the bolt and to slip freely thereon. Secured to the lower sideof the washer are wires E, which are bent outward at right angles to thewasher and project therefrom, the said wires being arranged within theradius of. the openingin the washer and adapted to fit and slide in thegrooves of the bolt when the washer is placed thereon. The said groovesare of sufficient depth to enable the wires to clear the threadedopening of the nut, so that the latter maybe screwed home on the bolt inthe usual manner. In order to lock the nut, it is only necessary to bendthe projecting ends of the Wires outward on the face of the nut and overthe sides thereof, as shown in Fig. 1, and

bolt, and also weakens it. I obviate these obwires to fit the grooves,thus dispensing en tirely with the opening in the bolt. More over, myimproved nut-locking device 130s sesses advantages over the constructionhereinbefore disclaimed, inasmuch as it can be much more readily andquickly applied to a bolt and nut.

Having thus set forth and particularly described my invention, I claim-The combination, with the bolt having the longitudinal grooves and thenut, of the washer adapted to slip freely on the bolt, and having thewires to fit in the grooves, said wires being adapted to be bent outwardover the face and sides of the nut to lock the lat ter, substantially asdescribed.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

MORGAN PENNYBACKER.

\Vitnesses:

SCHUYLER DURYEE, H. S. ROHRER.

